Engine keeps misfiring

[Simondavies89]

Hi, just got a T reg 1999 saxo vtr with 64000 on it. A few days after it started to misfire and it seems to be getting worse. Generly misfiring all the time but more in 5th gear. Ive changed plugs and coil pack and given it a full service but its made no difference. I was just after some ideas. Cheers

[stevo67]

Get a compression test done.

[Simondavies89]

Its normaly worse one its heated up, its got worse and is now goin frew stages of constantly missin for 10 seconds plus, then it will stop nd be fine again. Ppl are telin me sensors, injectors or ecu. Any ideas?